Fairchild FSUSB63 USB 3‑to‑1 High‑Speed Switch/Demultiplexer Datasheet

The FSUSB63 is a bidirectional low‑power USB 2.0 3‑to‑1 multiplexer with 126 µs turn‑on‑then‑off time, 6 Ω RON, 6 pF CON and 830 MHz bandwidth.


Fairchild FSUSB63 USB 3‑to‑1 High‑Speed Switch/Demultiplexer Datasheet - cover page
Brand
Fairchild
Category
Other Electronics
Document type
Datasheet
Language
Chinese
Pages
3
File format
PDF
File size
400 KB
Published
28 September, 2026
Updated
28 September, 2026
MD5 checksum
1B254063C1983F4D2EE3EABD039C9A16

About this manual

The FSUSB63 is a dual‑direction, low‑power, high‑speed USB 2.0 3‑to‑1 multiplexer designed for routing three high‑speed (480 Mbps) or mixed high‑/full‑speed (12 Mbps) USB signals to a single USB connector. It features a “turn‑on‑then‑off” timing characteristic that simplifies host‑side switching.

Key specifications include a typical on‑resistance of 6 Ω, on‑capacitance of 6 pF, bandwidth up to 830 MHz, and operation from 2.7 V to 4.4 V. The device is supplied in a 12‑pin ultra‑thin molded lead‑frame package (UMLP) measuring 1.80 × 1.80 × 0.55 mm, suitable for mobile phones, digital cameras, laptops, displays, TVs and set‑top boxes. This manual is written in Chinese.

What's inside

  • Features
  • Ordering Information
  • Applications
  • Physical Dimensions
  • Package Information
  • References

Specifications

Switch type3:1 (3‑to‑1)
Turn‑on‑then‑off time126 µs
On‑resistance (RON)6 Ω (typical)
On‑capacitance (CON)6 pF (typical)
Bandwidth830 MHz
Supply voltage (VCC)2.7 V – 4.4 V
Control voltage (VCNTRL)0 to VCC
Operating temperature-40 °C to 85 °C
ICCSLP (sleep current)<1 µA
ICCACT (active current)7.5 µA (typical)
Package12‑pin UMLP 1.80 × 1.80 × 0.55 mm

Frequently asked questions

What is the turn‑on‑then‑off time of the FSUSB63?

The device has a turn‑on‑then‑off time of 126 µs.

What is the typical on‑resistance (RON) of the FSUSB63?

Typical on‑resistance is 6 Ω.

What bandwidth does the FSUSB63 support?

It supports a bandwidth of up to 830 MHz.

What is the operating temperature range?

It operates from –40 °C to +85 °C.

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